. ♪ (train horn) vo: wherever our trains go, the economy comes to life. norfolk southern. one line, infinite possibilities. his morning starts with arthritis pain. and two pills. afternoon's overhaul starts with more pain. more pills. triple checking hydraulics. the evening brings more pain. so, back to more pills. almost done, when... hang on. stan's doctor recommended aleve. it can keep pain away all day with fewer pills than tylenol. this is rudy. who switched to aleve. and two pis for a day free of pain. ♪ and get the all day pain relief of aleve in liquid gels. ♪ chances are, you're not made of money, so don't overpay for motorcycle insurance. geico, see how much you could save. >>> tonight, a story you will not see anywhere else. >>> tonight, a story you will not see anywhere else. for the first time, cnn's arwa damon talks about what she experienced when she first set foot inside the american compound in benghazi. what the terrible scene was like after the deadly assault that killed four americans. evidence she saw that might have been useful to investigators. t